CN115193705A - Biomass screening and feeding device for biomass circulating fluidized bed boiler - Google Patents
Biomass screening and feeding device for biomass circulating fluidized bed boiler Download PDFInfo
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- CN115193705A CN115193705A CN202211129802.3A CN202211129802A CN115193705A CN 115193705 A CN115193705 A CN 115193705A CN 202211129802 A CN202211129802 A CN 202211129802A CN 115193705 A CN115193705 A CN 115193705A
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- feeding
- pipe
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- 238000012216 screening Methods 0.000 title claims abstract description 78
- 239000002028 Biomass Substances 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 109
- 238000007599 discharging Methods 0.000 claims description 46
- 238000009434 installation Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 5
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract description 3
- 241000209094 Oryza Species 0.000 description 27
- 235000007164 Oryza sativa Nutrition 0.000 description 27
- 235000009566 rice Nutrition 0.000 description 27
- 239000010903 husk Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 239000010902 straw Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/04—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a biomass screening and feeding device for a biomass circulating fluidized bed boiler, which comprises a support, wherein a screening mechanism is arranged at the upper part of the support, the lower part of the screening mechanism is connected with a feeding mechanism, the screening mechanism comprises a feed box and a screening component, a partition plate is arranged inside the feed box and divides the inside of the feed box into a first feed box and a second feed box, a first baffle plate and a second baffle plate are respectively arranged inside the first feed box and the second feed box, a feed opening is respectively formed in each of the first baffle plate and the second baffle plate, a first inclined plate is respectively arranged on each of two sides of each of the first baffle plate, a second inclined plate is respectively arranged on each of two sides of each of the second baffle plate, a baffle component is respectively arranged on the lower part of each of the feed openings, a first feed opening and a second feed opening are respectively formed in the lower parts of the first feed box and the second feed opening, and a controller is arranged on the outer side of the support and used for controlling the operation of the screening component, the feeding mechanism and the baffle component. The biomass screening device can screen biomass which enters a boiler and is mixed with combustion and has different volumes.
Description
Technical Field
The invention relates to the technical field of biomass circulating fluidized beds, in particular to a biomass screening and feeding device for a biomass circulating fluidized bed boiler.
Background
Circulating Fluidized Bed CFB (circulating Fluidized Bed) combustion technology is receiving increasing attention from various countries due to its unique advantages over other combustion technologies in terms of replacing fuels, treating various wastes, and protecting the environment. Due to the characteristics of various biomass fuels, even biomass wastes such as simply crushed straws and waste wood still have the characteristics of low heat value and irregular shape. Therefore, the heat value of the stokehole of the boiler is often greatly changed, and if the boiler is directly fed into a CFB boiler for combustion, the combustion is unstable. In addition, due to the high porosity, these bulky biomass wastes are also not conducive to long distance transportation. In order to solve the above-mentioned contradiction, the biomass compression molding technology is produced. The biomass compression molding technology is that biomass and additive which is subjected to dechlorination are mixed and then cast into a model to prepare the derived fuel which has uniform size, uniform contained heat value and easy transportation.
The traditional feeding device only has a conveying function and does not have a screening function, mixed biomass fuel is screened and input into different boilers, the number and the types of equipment are reduced, the construction and installation cost is reduced, and the construction speed of corresponding projects is accelerated.
Disclosure of Invention
The invention aims to provide a biomass screening and feeding device for a biomass circulating fluidized bed boiler, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a living beings screening and material feeding unit for living beings circulating fluidized bed boiler, includes the support, support upper portion is provided with screening mechanism, screening mechanism's sub-unit connection has feeding mechanism, screening mechanism includes workbin and screening subassembly, the inside of workbin is provided with the baffle, the baffle is with workbin internal partitioning for workbin one and workbin two, the inside of workbin one and workbin two is provided with striker plate one and striker plate two respectively, the feed opening has all been seted up in striker plate one and the striker plate two, striker plate one both sides are provided with swash plate one respectively, the both sides of striker plate two are provided with swash plate two respectively, the feed opening lower part all is provided with striker assembly, pay-off mouth one and pay-off mouth two have been seted up respectively to the lower part of workbin one and workbin two, the outside of support is provided with the controller, the controller is used for controlling screening subassembly, feeding mechanism and striker assembly work.
Preferably, the screening subassembly includes fan, first unloading unit, second unloading unit, third unloading unit, suction tuber pipe, inhales material pipe, tuber pipe one and accent tuber pipe unit, first unloading unit sets up in workbin one, second unloading unit sets up in workbin two, third unloading unit sets up in the workbin outside, the suction tuber pipe sets up in the inside of workbin and its both ends respectively with first unloading unit and accent tuber pipe unit connection, the one end of suction tuber pipe runs through one side and the accent tuber pipe unit connection of baffle and workbin with this, the accent tuber pipe is located between fan and the third unloading unit, and its upper and lower both ends respectively with fan and third unloading unit intercommunication, inhale the material pipe setting in the outside of workbin, and its both ends respectively with workbin one and workbin two intercommunications, inhale the inside filter screen that is provided with respectively in the both ends of material pipe, tuber pipe one sets up in the outside of workbin, tuber pipe one runs through pan pipe two, the one end of tuber pipe one is kept away from the workbin is connected with the one end of fan, the fan is connected with the controller.
Preferably, first unloading unit is including connecing flitch one, screening case one, electric cylinder one and valve plate one, connect flitch one middle part to have seted up and connect the silo, the upper portion of screening case one is open structure, the upper portion of screening case one with connect silo inner wall connection, a blown down tank one has been seted up to the lower part of screening case one, the inside of screening case one is provided with the swash plate, a plurality of screening holes one have been seted up on the swash plate, one side and the suction tuber pipe intercommunication of screening case one, one side of screening case one is seted up with a valve plate complex valve plate spout one, a valve plate slides and sets up in valve plate spout one, the size of valve plate and the size cooperation of blown down tank one for seal the blown down tank one, electric cylinder one sets up in the outside of workbin, electric cylinder one's lower part is provided with mounting panel one, mounting panel one is connected with one side of support, push-pull rod one is connected to electric cylinder one's one end, push-pull rod one keeps away from electric cylinder one end and runs through the pan feeding case one and is connected with valve plate one, one side that connects the flitch one, one is provided with the blanking slide plate one, the upper portion of workbin is provided with the upper portion of workbin, electric cylinder one is connected with the control ware.
Preferably, the second blanking unit comprises a material receiving plate II, a blanking groove III, an electric cylinder II, an electric cylinder III, a valve plate II and a valve plate III, a blanking opening II and a blanking opening III are formed in two sides of the material receiving plate II, the upper parts of the blanking groove II and the blanking groove III are connected with the inner walls of the blanking opening II and the blanking opening III, the blanking groove II and the blanking groove III are respectively positioned on two sides of the suction air pipe, a valve plate sliding groove II and a valve plate sliding groove III which are matched with the valve plate II and the valve plate III are respectively formed in one side of the blanking groove II and one side of the blanking groove III, the valve plate II and the valve plate III are respectively connected with the valve plate sliding groove II and the valve plate sliding groove III in a sliding manner, the second valve plate and the third valve plate are used for sealing the second blanking groove and the third blanking groove, the second blanking sliding plate and the third blanking sliding plate are arranged on two sides of the second material receiving plate respectively, the second electric cylinder and the third electric cylinder are arranged on the outer side of the second material box, one end of the second electric cylinder and one end of the third electric cylinder are connected with the second push-pull rod and the third push-pull rod respectively, one end, far away from the second electric cylinder, of the second push-pull rod penetrates through the second material receiving box and is connected with the second valve plate, one end, far away from the third electric cylinder, of the third push-pull rod penetrates through the second material receiving box and is connected with the third valve plate, and the second electric cylinder and the third electric cylinder are connected with the controller.
Preferably, the third unloading unit is including connecing the workbin, seting up at the connection silo that connects the workbin upper portion, seting up at a plurality of ventilation holes that connect workbin one side, it is hollow structure to connect the workbin, connect workbin one side and two intercommunications of workbin.
Preferably, the air adjusting pipe unit comprises a hollow connecting box, a rotating plate arranged inside the connecting box in a rotating mode, and a rotating motor arranged outside the connecting box, an output shaft of the rotating motor penetrates into the connecting box to be connected with the rotating plate, a communicating groove matched with the connecting material groove is formed in the lower portion of the connecting box, arc grooves are formed in two sides of the communicating groove, the rotating plate is connected with the arc grooves in a sliding mode, a ventilating groove is formed in the upper portion of the connecting box and communicated with the lower portion of the fan, a filter screen II is arranged in the ventilating groove, and the rotating motor is connected with the controller.
Preferably, the material blocking assembly comprises a fourth electric cylinder, a fourth valve plate and a valve plate sliding groove, the valve plate sliding groove is formed in the lower portion of the feed opening, the fourth valve plate is arranged in the valve plate sliding groove in a sliding mode, the fourth electric cylinder is arranged on the outer side of the material box, one end of the fourth electric cylinder is connected with a fourth push-pull rod, one end, far away from the fourth electric cylinder, of the fourth push-pull rod penetrates through the material box and is connected with the fourth valve plate, and the fourth electric cylinder is connected with the controller.
Preferably, the feeding mechanism comprises a first feeding pipe, a second feeding pipe and a conveying fan, the first feeding pipe and the second feeding pipe are respectively connected with the inner wall of the first feeding port and the inner wall of the second feeding port, the conveying fan is arranged on the lower side of the material box, the upper side of the conveying fan is connected with the first conveying air pipe and the second conveying air pipe, one end, far away from the first conveying air pipe and the second conveying air pipe, of the conveying fan is communicated with the first feeding pipe and the second feeding pipe, an installation rod is arranged on the lower portion of the conveying fan, two ends of the installation rod are connected with a support, and the conveying fan is connected with the controller.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, after the fan is started, air in the material box II is pumped out and is input into the pumping air pipe, the air flow is blown out from the first screening hole on the inclined plate, the size of the first screening hole is between that of the rice hulls and the compressed straw particles, the rice hulls can be ensured to be incapable of passing through the first screening hole through the straw particles, the blown air flow blows the rice hulls, the air in the material box II is pumped out, the air pressure in the material box II is reduced, the air in the material box I and the material box II are communicated through the suction pipe, the air in the material box I enters the material box II for supplement through the suction pipe, the flying rice hulls are driven by the flowing air flow to enter the material box II, after entering the material box II, the space is suddenly increased, the air flow rate is reduced, and the rice hulls fall onto the material receiving plate II, so that the rice hulls are screened into the material box II.
2. Meanwhile, the rotating motor is started through the controller to drive the rotating plate to rotate to the rear side of the communicating groove, at the moment, part of air flow blown out from the lower portion of the air pump enters the connecting box through the communicating groove, and the part of air flow is discharged from the two sides of the connecting box and enters the lower space of the material box II respectively, so that the air flow in the air draft tube is reduced, and the effect of adjusting the intensity of the air flow blown into the air suction tube can be achieved.
3. According to the rice husk separator, the controller controls the air pump to change the working state, the air pump pumps out air in the air suction pipe, the rice husk in the screening box I is tightly sucked into the connecting box through the air suction pipe under the driving of air flow, and the filter screen II is arranged and used for preventing the rice husk from entering the air pump; meanwhile, the air pump is closed, and at the moment, the rice hulls can enter the material receiving box through the communicating groove and slide onto the material baffle plate II through the material receiving box; in this way, a small amount of rice hulls remaining in the first screening box are sucked into the second bin.
Drawings
FIG. 1 is a cross-sectional view of the overall construction of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic front view of the structure of FIG. 2 according to the present invention;
FIG. 4 is a schematic side view of FIG. 2 according to the present invention;
FIG. 5 is a schematic top view of the structure of FIG. 2 according to the present invention;
FIG. 6 is a bottom view of the FIG. 2 assembly of the present invention;
FIG. 7 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 8 is a schematic view of the structure of the air adjusting pipe unit of the present invention;
fig. 9 is a cross-sectional view of the air register unit of the present invention.
In the figure: the device comprises a support 1, a screening mechanism 2, a feeding mechanism 3, a feed box 4, a screening assembly 5, a feed box I41, a feed box II 42, a feed pipe I301, a feed pipe II 302, a feed air pump 303, an air pump 51, a first blanking unit 52, a material receiving plate I5201, a screening box I5202, an electric cylinder I5203, a valve plate I5204, a material receiving groove 5205, a material discharging groove I5206, a screening hole I5207, a second blanking unit 53, a material receiving plate II 5301, a material discharging groove II 5302, a material discharging groove III 5303, an electric cylinder II 5304, an electric cylinder III 5305, a valve plate II 5306, a valve plate III 5307, a third blanking unit 54, a suction air pipe 55, a material suction pipe 56, a first 57, an air regulating air pipe unit 58, a connecting box 5801, a rotating plate 5802, a rotating motor 5803, a communication groove 5804, a material blocking plate I6, a material blocking plate II 7, a material blocking plate I8, an inclined plate II 9, an inclined plate 10, an electric cylinder IV cylinder 1001, a valve plate 1002, a material feeding chute 11 and a chute 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, the present invention provides a technical solution: a biomass screening and feeding device for a biomass circulating fluidized bed boiler comprises a support 1, a screening mechanism 2 is mounted on the upper portion of the support 1, a feeding mechanism 3 is connected to the lower portion of the screening mechanism 2, the screening mechanism 2 comprises a bin 4 and a screening assembly 5, a partition board is mounted inside the bin 4 and divides the interior of the bin 4 into a first bin 41 and a second bin 42, the screening assembly 5 comprises an air pump 51, a first blanking unit 52, a second blanking unit 53, a third blanking unit 54, a suction air pipe 55, a suction pipe 56, a first air pipe 57 and an air adjusting pipe unit 58, the first blanking unit 52 is mounted in the first bin 41, the second blanking unit 53 is mounted in the second bin 42, the third blanking unit 54 is mounted on the outer side of the bin 4, the suction air pipe 55 is arranged in the feed box 4, two ends of the suction air pipe 55 are respectively connected with the first blanking unit 52 and the air adjusting unit, one end of the suction air pipe 55 penetrates through the partition board and one side of the feed box 4 to be connected with the air adjusting pipe unit 58, the air adjusting unit is located between the air pump 51 and the third blanking unit 54, the upper end and the lower end of the suction air pipe are respectively communicated with the air pump 51 and the third blanking unit 54, the suction pipe 56 is arranged outside the feed box 4, two ends of the suction pipe 56 are respectively communicated with the first feed box 41 and the second feed box 42, filter screens are respectively arranged inside two ends of the suction pipe 56, the first air pipe 57 is arranged outside the feed box 4, one end of the first air pipe 57 penetrates through the second feed box 42, one end, far away from the feed box 4, of the first air pipe 57 is connected with one end of the air pump 51, and the air pump 51 is connected with the controller.
The inside of workbin one 41 and workbin two 42 is installed respectively and is had striker plate one 6 and striker plate two 7, the feed opening has all been seted up in striker plate one 6 and the striker plate two 7, swash plate one 8 is installed respectively to striker plate one 6 both sides, swash plate two 9 is installed respectively to the both sides of striker plate two 7, striker assembly 10 is all installed to the feed opening lower part, pay-off mouth one 11 and pay-off mouth two 12 have been seted up respectively to workbin one 41 and workbin two 42's lower part, the controller is installed in the outside of support 1, the controller is used for controlling screening subassembly 5, feeding mechanism 3 and striker assembly 10 work.
The first blanking unit 52 comprises a material receiving plate I5201, a screening box I5202, an electric cylinder I5203 and a valve plate I5204, wherein a material receiving groove 5205 is arranged in the middle of the material receiving plate I5201, the upper part of the screening box I5202 is of an open structure, the upper part of the screening box I5202 is connected with the inner wall of the material receiving groove 5205, a material discharging groove I5206 is arranged at the lower part of the screening box I5202, an inclined plate is arranged inside the screening box I5202, a plurality of screening holes I5207 are arranged on the inclined plate, one side of the screening box I5202 is communicated with a suction air pipe 55, a valve plate sliding groove I matched with the valve plate I5204 is arranged at one side of the screening box I5202, the first valve plate 5204 is slidably mounted in the first valve plate sliding groove, the size of the first valve plate is matched with the size of the first discharge groove 5206, the first discharge groove 5206 is sealed, the first electric cylinder 5203 is mounted on the outer side of the material box 4, the first mounting plate is mounted on the lower portion of the first electric cylinder 5203 and connected with one side of the support 1, one end of the first electric cylinder 5203 is connected with the first push-pull rod, one end, far away from the first electric cylinder 5203, of the first push-pull rod penetrates through the first material feeding box 41 and is connected with the first valve plate 5204, the first material discharging sliding plate is mounted on one side of the first material receiving plate 5201, the first material box plate is mounted on the upper portion of the first material box 41, and the first electric cylinder 5203 is connected with the controller.
The second discharging unit 53 comprises a second material receiving plate 5301, a second discharging groove 5302, a third discharging groove 5303, a second electric cylinder 5304, a third electric cylinder 5305, a second valve plate 5306 and a third valve plate 5307, wherein the two sides of the second material receiving plate 5301 are provided with a second discharging opening and a third discharging opening, the upper parts of the second discharging groove 5302 and the third discharging groove 5303 are connected with the second discharging opening and the three inner walls of the discharging opening, the second discharging groove 5302 and the third discharging groove 5303 are respectively positioned on the two sides of the suction air pipe 55, one sides of the second discharging groove 5302 and the third discharging groove 5303 are respectively provided with a second valve plate chute and a third valve plate chute which are matched with the second valve plate 5306 and the third valve plate 5307, the second valve plate 5306 and the third valve plate 5307 are respectively connected with the second valve plate chute and the third valve plate chute 1003 in a sliding mode, the second discharging groove 5306 and the third discharging groove 5307 are used for sealing the second discharging groove 5302 and the third discharging groove 5303, the two sides of the second discharging plate 5301 are respectively provided with the second discharging sliding plate and the third sliding rod 5304, the sliding rod of the electric cylinder 5305 is connected with the second pushing and the third pushing rod of the second pushing and the pushing rod of the second cylinder 5305, one end of the electric cylinder 5305, one end of the pushing and the pushing rod of the pushing and the pushing rod for controlling cylinder 5305, and the pushing rod of the pushing rod.
The third blanking unit 54 comprises a material receiving box 5401, a connecting material groove 5402 formed in the upper portion of the material receiving box 5401, and a plurality of vent holes 5403 formed in one side of the material receiving box 5401, wherein the material receiving box 5401 is of a hollow structure, and one side of the material receiving box 5401 is communicated with the second material box 42.
The air adjusting pipe unit 58 comprises a connecting box 5801 with a hollow structure, a rotating plate 5802 rotatably installed inside the connecting box 5801, a rotating motor 5803 installed outside the connecting box 5801, an output shaft of the rotating motor 5803 penetrates through the connecting box 5801 to be connected with the rotating plate 5802, a communicating groove 5804 matched with the connecting material groove 5402 is formed in the lower portion of the connecting box 5801, arc-shaped grooves are formed in two sides of the communicating groove 5804, the rotating plate 5802 is in sliding connection with the arc-shaped grooves, a ventilating groove is formed in the upper portion of the connecting box 5801 and communicated with the lower portion of the air pump 51, a filter screen II is installed in the ventilating groove, and the rotating motor 5803 is connected with a controller.
Keep off material subassembly 10 and include electric jar four 1001, valve plate four 1002 and valve plate spout 1003, valve plate spout 1003 is installed in the feed opening lower part, and valve plate four 1002 slidable mounting is in valve plate spout 1003, and electric jar four 1001 installs the outside at workbin 4, and the one end of electric jar four 1001 is connected with push-and-pull rod four, and the one end that electric jar four 1001 was kept away from to push-and-pull rod four runs through into workbin 4 and is connected with valve plate four 1002, and electric jar four 1001 is connected with the controller.
Feeding mechanism 3 includes conveying pipe 301, two 302 and defeated material air pump 303, conveying pipe 301 and two 302 with the inner wall connection of pay-off mouth 11 and pay-off mouth two 12 respectively, the downside of workbin 4 is installed to defeated material air pump 303, defeated material air pump 303's higher authority is connected defeated material tuber pipe 57 and defeated material tuber pipe two, the one end and the first 301 of conveying pipe 302 and the two 302 intercommunications of conveying pipe of defeated material air pump 303 that defeated material tuber pipe 57 and defeated material tuber pipe two kept away from, the installation pole is installed to the lower part of defeated material air pump 303, the both ends and the support 1 of installation pole are connected, defeated material air pump 303 is connected with the controller.
The working principle is as follows: when the device is used, the straw particles and the rice hull particles which are formed by compression are conveyed into the first bin 41 through an external belt conveying device, the straw particles and the rice hull particles which enter the first bin 41 slide into the first screening bin 5202 through the inclined plate I8, the air pump 51 is started through the controller, the bidirectional air pump 51 is used in practical use, air in the second bin 42 is pumped out after the air pump 51 is started, and is input into the suction air pipe 55, air flow is blown out from the first screening hole 5207 on the inclined plate, the size of the first screening hole 5207 is between that of the rice hull and the compressed straw particles, the rice hull is guaranteed to be blown up through the air flow which can not pass through the first screening hole 5207 after the air in the second bin 42 is pumped out, so that the air pressure in the second bin 42 is reduced, the air in the first bin 41 is communicated with the second bin 42 through the suction pipe 56, the air in the first bin 41 enters the second bin 42 through the suction pipe 56 for supplement, and the air flow driven by the flowing air flow enters the second bin 42, so that the flow velocity is reduced, and the air flow is kept in the first bin 5306 when the discharge chute is closed; then, the controller controls the second electric cylinder 5304 and the third electric cylinder 5305 to be started, the second valve plate 5306 and the third valve plate 5307 are pulled out to one side, and the rice hulls fall onto the second material baffle plate 7 through the second discharging groove 5302 and the third discharging groove 5303; the air pump 51 can be started, the rotating motor 5803 is controlled to rotate through the controller, the rotating plate 5802 is rotated to the rear side of the communicating groove 5804, the air pump 51 is communicated with the inner space of the second bin 42 at the lower portion of the second material receiving plate 5301, air in the space is pumped out, and residual rice husks above the second material receiving plate 5301 are sucked down through negative pressure. The rotating motor 5803 is started by the controller, the rotating plate 5802 is driven to rotate to the rear side of the communicating groove 5804, at the moment, a part of air flow blown out from the lower portion of the air pump 51 enters the connecting box 5801 through the communicating groove 5804, the part of air flow is discharged from the air vent 5403 on one side of the connecting box 5801, and the part of air flow enters the lower space of the second material box 42, so that the air flow in the exhaust pipe is reduced, and the effect of adjusting the air flow strength can be achieved; in addition, because the internal space of the second bin 42 is large, in the process of extracting the air in the second bin, the air in the suction pipe 56 is added, negative pressure is formed on the side of the suction pipe 56, the air in the first bin 41 flows to the suction pipe 56 and needs a certain time when reaching a certain strength, at the moment, the air in the suction air pipe 55 is blown out, a time difference exists between the two processes of blowing and sucking the rice husks, and although the time is short, the rice husks are guaranteed to be blown up firstly and then sucked away.
In addition, the controller controls the air pump 51 to change the working state, the air pump 51 pumps out the air in the suction air pipe 55, and the rice husks in the first screening box 5202 are tightly pumped into the connecting box 5801 by the air flow to be provided with the second filter screen, so that the rice husks cannot enter the air pump 51; meanwhile, the air pump 51 is closed, and at the moment, the rice hulls can enter the material receiving box 5401 through the communicating groove 5804 and slide onto the material baffle plate II 7 through the material receiving box 5401; in this manner, a small amount of rice hulls remaining in the first hopper 5202 are drawn into the second hopper 42. In the process, rice husks and straw compressed particles are screened, and the rice husks are stored in a second material box 42.
The controller controls the first electric cylinder 5203 to start, the first valve plate 5204 is pulled out to one side, the first discharge chute 5206 is opened, and the straw compressed particles fall to the upper part of the first striker plate 6; the compressed straw particles are stored in a first bin 41.
The first feeding pipe 301 and the second feeding pipe 302 are connected with a fluidized bed boiler, the controller controls the electric cylinders four 1001 on the two sides to work, the valve plate four 1002 is pulled out towards one side, the feed opening is opened, and at the moment, rice husks and straw compressed particles can enter the boiler from the first feeding pipe 301 and the second feeding pipe 302 respectively; in the process, the controller starts the material conveying air pump 303 to blow air into the first material conveying pipe and the second material conveying pipe, so that high pressure in the furnace is overcome, and rice husk and straw compressed particles can normally enter the furnace.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a living beings screening and material feeding unit for living beings circulating fluidized bed boiler, includes support (1), its characterized in that: the upper part of the bracket (1) is provided with a screening mechanism (2), the lower part of the screening mechanism (2) is connected with a feeding mechanism (3), the screening mechanism (2) comprises a material box (4) and a screening component (5), the inside of the feed box (4) is provided with a clapboard which divides the inside of the feed box (4) into a first feed box (41) and a second feed box (42), a first material baffle plate (6) and a second material baffle plate (7) are respectively arranged inside the first material box (41) and the second material box (42), feed openings are respectively arranged in the first striker plate (6) and the second striker plate (7), two sides of the striker plate I (6) are respectively provided with an inclined plate I (8), two sides of the second striker plate (7) are respectively provided with a second inclined plate (9), the lower parts of the feed openings are provided with material blocking assemblies (10), the lower parts of the first material box (41) and the second material box (42) are respectively provided with a first feeding opening (11) and a second feeding opening (12), a controller is arranged on the outer side of the bracket (1), and the screening assembly (5) comprises an air pump (51), a first blanking unit (52), a second blanking unit (53), a third blanking unit (54), a suction air pipe (55), a suction pipe (56), a first air pipe (57) and an air adjusting pipe unit (58); the controller is used for controlling the operation of the screening assembly (5), the feeding mechanism (3) and the material blocking assembly (10).
2. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 1, characterized in that: first unloading unit (52) sets up in workbin one (41), second unloading unit (53) sets up in workbin two (42), third unloading unit (54) sets up in workbin (4) the outside, suction air pipe (55) set up in the inside of workbin (4) and its both ends respectively with first unloading unit (52) and accent wind unit connection, the one end of suction air pipe (55) runs through baffle and workbin (4) with this one side and is connected with accent wind pipe unit (58), the accent wind unit is located between air pump (51) and third unloading unit (54), and its upper and lower both ends respectively with air pump (51) and third unloading unit (54) intercommunication, suction pipe (56) set up in the outside of workbin (4), and its both ends respectively with workbin one (41) and workbin two (42) intercommunication, the inside filter screen that is provided with respectively in the both ends of suction pipe (56), one (57) sets up in the outside of workbin (4), the one end of air pipe (57) runs through air pipe (57) air pipe (51) and air pump (51) are connected with air pump (51), air pump (51) and air pump (51) connection ware one end.
3. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 2, characterized in that: the first discharging unit (52) comprises a first material receiving plate (5201), a first screening box (5202), a first electric cylinder (5203) and a first valve plate (5204), wherein a material receiving groove (5205) is formed in the middle of the first material receiving plate (5201), the upper part of the first screening box (5202) is of an open structure, the upper part of the first screening box (5202) is connected with the inner wall of the material receiving groove (5205), a first discharging groove (5206) is formed in the lower part of the first screening box (5202), an inclined plate is arranged inside the first screening box (5202), a plurality of first screening holes (5207) are formed in the inclined plate, one side of the first screening box (5202) is communicated with an air duct suction pipe (55), one side of the first screening box (5202) is provided with a first valve plate chute matched with the first valve plate (5204), the first valve plate (5204) is arranged in the first valve plate chute in a sliding manner, the size of the valve plate is matched with the size of the first discharging groove (5206) for sealing the first discharging groove (5206), one side of the electric cylinder (5203) is arranged on the outer side of the electric cylinder (5203), one side of the mounting plate, one end of the sliding plate, one sliding plate is connected with the first discharging cylinder (5203), one end of the mounting plate, one end of the electric cylinder (5203) is connected with the electric cylinder (5203), one end of the push-pull-and one end of the connecting rod (5204) is provided with the one end of the one of the electric cylinder (5203) is connected with the one of the one connecting rod, the one of the one connecting rod (5203), the upper part of the first feed box (41) is provided with a first feed box plate, and the first electric cylinder (5203) is connected with a controller.
4. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 2, characterized in that: the second discharging unit (53) comprises a second material receiving plate (5301), a second discharging groove (5302), a third discharging groove (5303), a second electric cylinder (5304), a third electric cylinder (5305), a second valve plate (5306) and a third valve plate (5307), wherein the two sides of the second material receiving plate (5301) are provided with a second discharging opening and a third discharging opening, the upper parts of the second discharging groove (5302) and the third discharging groove (5303) are connected with the inner walls of the second discharging opening and the three inner walls of the discharging opening, the second discharging groove (5303) and the third discharging groove (5303) are respectively positioned on two sides of the suction air pipe (55), the second valve plate (5306) and the third valve plate (5307) are respectively provided with a second sliding chute and a third sliding chute (1003) matched with the second valve plate (5306) and the third valve plate (5307) on one side of the second discharging groove (5302) and the third sliding chute (1003) and the third sliding plate (5307), the second discharging groove (5306) and the third sliding rod (5305) are respectively connected with the second sliding rod (5304) and the sliding rod (5304), and the sliding rod of the second discharging groove (5305) and the sliding rod is arranged on the outer side of the second discharging groove (5303), and the sliding rod of the second sliding rod (5304) And connecting, one end of the push-pull rod III, which is far away from the electric cylinder III (5305), penetrates through the material feeding box II (42) to be connected with the valve plate III (5307), and the electric cylinder II (5304) and the electric cylinder III (5305) are connected with the controller.
5. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 2, characterized in that: third unloading unit (54) including connect workbin (5401), set up and connect silo (5402), set up a plurality of ventilation holes (5403) that connect workbin (5401) one side on connecing workbin (5401) upper portion, connect workbin (5401) to be hollow structure, connect workbin (5401) one side and workbin two (42) intercommunication.
6. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 5, characterized in that: transfer tuber pipe unit (58) including hollow structure's connecting box (5801), rotate and set up at inside rotor plate (5802) of connecting box (5801), set up rotation motor (5803) in connecting box (5801) outside, the output shaft of rotating motor (5803) runs through connecting box (5801) and is connected with rotor plate (5802), the lower part of connecting box (5801) is seted up and is connected silo (5402) complex intercommunication groove (5804), the arc wall has been seted up to the both sides of intercommunication groove (5804), rotor plate (5802) and arc wall sliding connection, the ventilation groove has been seted up on the upper portion of connecting box (5801), the lower part intercommunication of ventilation groove and connecting trough (51), be provided with filter screen two in the ventilation groove, it is connected with the controller to rotate motor (5803).
7. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 1, characterized in that: keep off material subassembly (10) including electricity jar four (1001), valve plate four (1002) and valve plate spout (1003), valve plate spout (1003) set up in the feed opening lower part, four (1002) of valve plate slide and set up in valve plate spout (1003), four (1001) of electricity jar set up in the outside of workbin (4), the one end of four (1001) of electricity jar is connected with push-and-pull rod four, the one end that four (1001) of electricity jar were kept away from to push-and-pull rod runs through pan feeding case (4) and is connected with four (1002) of valve plate, four (1001) of electricity jar are connected with the controller.
8. The biomass screening and feeding device for the biomass circulating fluidized bed boiler according to claim 1, characterized in that: the feeding mechanism (3) comprises a first feeding pipe (301), a second feeding pipe (302) and a material conveying air pump (303), wherein the first feeding pipe (301) and the second feeding pipe (302) are respectively connected with the inner walls of the first feeding port (11) and the second feeding port (12), the material conveying air pump (303) is arranged on the lower side of the material box (4), the first feeding air pipe and the second feeding air pipe are connected with the upper side of the material conveying air pump (303), one end of the material conveying air pump (303) far away from the first feeding air pipe and the second feeding air pipe is communicated with the first feeding pipe (301) and the second feeding pipe (302), an installation rod is arranged on the lower portion of the material conveying air pump (303), two ends of the installation rod are connected with the support (1), and the material conveying air pump (303) is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129802.3A CN115193705A (en) | 2022-09-16 | 2022-09-16 | Biomass screening and feeding device for biomass circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129802.3A CN115193705A (en) | 2022-09-16 | 2022-09-16 | Biomass screening and feeding device for biomass circulating fluidized bed boiler |
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| Publication Number | Publication Date |
|---|---|
| CN115193705A true CN115193705A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211129802.3A Pending CN115193705A (en) | 2022-09-16 | 2022-09-16 | Biomass screening and feeding device for biomass circulating fluidized bed boiler |
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| Country | Link |
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| CN (1) | CN115193705A (en) |
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| CN115007460A (en) * | 2022-07-05 | 2022-09-06 | 辽宁石油化工大学 | Living beings granule raw materials wind selector |
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